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Finding the Fourth Proportional to 3,606.82, 5,411.84 and 1,960.90

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Solution

The fourth proportional to 3,606.82, 5,411.84 and 1,960.90 is: 2,942.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.82 : 5,411.84 = 1,960.90 : x
  2. Step 2: Convert to fraction form
    3,606.82/5,411.84 = 1,960.90/x
  3. Step 3: Cross multiply
    3,606.82x = 5,411.84 × 1,960.90
  4. Step 4: Simplify right side
    3,606.82x = 10,612,077.06
  5. Step 5: Solve for x
    x = 10,612,077.06/3,606.82
  6. Step 6: Final answer
    x = 2,942.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.